Dataset
ESA Soil Moisture Climate Change Initiative (Soil_Moisture_cci): PASSIVE Product, Version 04.5
Abstract
The Soil Moisture CCI PASSIVE dataset is one of the three datasets created as part of the European Space Agency's (ESA) Soil Moisture Essential Climate Variable (ECV) Climate Change Initiative (CCI) project. The product has been created by merging data from the SMMR, SSM/I, TMI, AMSR-E, WindSat, AMSR2 and SMOS satellite instruments. ACTIVE and COMBINED products have also been created.
The v04.5 PASSIVE product presents a global coverage of surface soil moisture at a spatial resolution of 0.25 degrees. The product is provided in volumetric units [m3 m-3] and covers the period (yyyy-mm-dd) 1978-11-01 to 2018-12-31. It consists of global daily images stored within yearly folders and are NetCDF-4 classic file formatted. For information regarding the theoretical and algorithmic base of the product, please see the Algorithm Theoretical Baseline Document. Other additional reference documents and information relating to the dataset can also be found on the CCI Soil Moisture project web site or within the Product Specification Document.
The data set should be cited using all three of the following references:
1. Gruber, A., Scanlon, T., van der Schalie, R., Wagner, W., and Dorigo, W. (2019). Evolution of the ESA CCI Soil Moisture climate data records and their underlying merging methodology, Earth Syst. Sci. Data, 11, 717–739, https://doi.org/10.5194/essd-11-717-2019
2. Dorigo, W.A., Wagner, W., Albergel, C., Albrecht, F., Balsamo, G., Brocca, L., Chung, D., Ertl, M., Forkel, M., Gruber, A., Haas, E., Hamer, D. P. Hirschi, M., Ikonen, J., De Jeu, R. Kidd, R. Lahoz, W., Liu, Y.Y., Miralles, D., Lecomte, P. (2017). ESA CCI Soil Moisture for improved Earth system understanding: State-of-the art and future directions. In Remote Sensing of Environment, 2017, ISSN 0034-4257, https://doi.org/10.1016/j.rse.2017.07.001
3. Gruber, A., Dorigo, W. A., Crow, W., Wagner W. (2017). Triple Collocation-Based Merging of Satellite Soil Moisture Retrievals. IEEE Transactions on Geoscience and Remote Sensing. PP. 1-13. 10.1109/TGRS.2017.2734070
Details
| Previous Info: |
2021-03-10 This dataset forms part of the Soil Moisture v04.5 dataset (doi:10.5285/38b8e5e524e1449ab4b4994970752644. http://dx.doi.org/10.… Show More 2021-03-10 This dataset forms part of the Soil Moisture v04.5 dataset (doi:10.5285/38b8e5e524e1449ab4b4994970752644. http://dx.doi.org/10.5285/38b8e5e524e1449ab4b4994970752644). Show Less |
|---|---|
| Previously used record identifiers: |
No related previous identifiers.
|
| Access rules: |
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence(s): https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_soilmoisture_terms_and_conditions.pdf When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
Data were processed by the ESA CCI Soil Moisture project team and transferred to CEDA for the ESA CCI Open Data Portal Project. This dataset forms part of the Soil Moisture v04.5 dataset (doi:10.5285/38b8e5e524e1449ab4b4994970752644. http://dx.doi.org/10.5285/38b8e5e524e1449ab4b4994970752644). |
| Data Quality: |
as provided by the CCI Soil Moisture team
|
| File Format: |
Data are netCDF formatted.
|
Related Documents
Process overview
Instrument/Platform pairings
| Scanning Multichannel Microwave Radiometer (SMMR) | Deployed on: NIMBUS 7 Satellite |
| Special Sensor Microwave / Imager (SSM/I) | Deployed on: Defense Meteorological Satellite Program (DMSP) Satellites |
| TMI | Deployed on: TRMM |
| AMSR-E | Deployed on: Aqua Satellite, part of the Earth Observation System Afternoon Constellation (EOS-PM) |
| AMSR-2 | Deployed on: GCOM-W (Global Change Observation Mission for Water) |
| WindSat | Deployed on: Coriolis |
| MIRAS | Deployed on: SMOS |
Mobile platform operations
| Mobile Platform Operation 1 | Mobile Platform Operation for: NIMBUS 7 Satellite |
| Mobile Platform Operation 2 | Mobile Platform Operation for: Defense Meteorological Satellite Program (DMSP) Satellites |
| Mobile Platform Operation 3 | Aqua Satellite orbit details |
| Mobile Platform Operation 4 | Coriolis Satellite Orbit Details |
| Mobile Platform Operation 5 | SMOS satellite orbit details |
| Mobile Platform Operation 6 | GCOM-W satellite orbit details |
| Mobile Platform Operation 7 | TRMM satellite orbit details |
Computation Element: 1
| Title | Algorithm for the ESA Soil Moisture Climate Change Initiative |
| Abstract | The ESA Soil Moisture Climate Change Initiative is deriving information on soil moisture from active and passive satellite sensors. For information on the algorithm see the Algorithm Theoretical Baseline Documents. |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
| Output Description | None |
- var_id: dnflag
- long_name: Day / Night Flag
- var_id: flag
- long_name: Flag
- long_name: Frequency Band Identification
- var_id: freqbandID
- long_name: Observation Timestamp
- var_id: t0
- long_name: Satellite Mode
- var_id: mode
- long_name: Sensor
- var_id: sensor
- var_id: sm
- units: m3 m-3
- long_name: Volumetric Soil Moisture
- var_id: sm_uncertainty
- units: m3 m-3
- long_name: Volumetric Soil Moisture Uncertainty
Co-ordinate Variables
- units: degrees_north
- standard_name: latitude
- var_id: lat
- units: degrees_east
- standard_name: longitude
- var_id: lon
- standard_name: time
- var_id: time
Temporal Range
1978-11-01T00:00:00
2018-12-31T23:59:59
Geographic Extent
90.0000° |
||
-180.0000° |
180.0000° |
|
-90.0000° |